Diluted acetic acid is an organic compound solution with between 5.7 grams and 6.3 grams of acetic acid in each 100 milliliters. The chemical formula for acetic acid is C2H4O2.
According to the National Center for Biotechnology Information PubChem website, acetic acid is a colorless liquid when undiluted, though it may change colors when diluted with another substance. It is used in the production of chemical compounds for adhesives and paints. Diluted acetic acid is also used as a solvent and in pharmacology. Vinegar is a type of diluted acetic acid.
According to IHS Chemical, acetic acid has environmentally friendly properties. In fact, a major source of the solution is recovered acetic acid. When the acid is used for production, the remaining solution can be reused. When acetic acid is first produced, it is termed "virgin." However, recovered acetic acid that is properly purified can be substituted in most processes calling for virgin acetic acid.
Concentrated acetic acid is corrosive and can damage human tissue. However, diluted acetic acid is used in physical therapy and in medicines. For example, a 0.25 percent diluted acetic acid solution can be used to irrigate the bladder to prevent the growth of bacteria. A 2 percent diluted acetic acid solution can be used to treat ear infections. These therapies must be supervised by a physician.